launcher: Properly quit if settings write fails.
launcher: Throw error if no data files are selected
launcher: Instead of killing config writing due to no master files being selected, instead display a warning when Play is pressed.
Merge remote-tracking branch 'darkf/issue-812'
updated credits file
better const correctness for MwIniImporter
no const for int and bool
Bugfix #809
Merge remote-tracking branch 'glorf/bugfix2'
static sdl2 compilation option for Unixes that are not Apple
should fix travis building problems with sdl2
travis cleanup, remove CG and OIS
use static sdl2
Added missing click sounds to dialogue
Type of weather changed from string to enum.
Simpler statistical calculation of next weather; minus before parens.
WeatherResult added as member variable.
Removal of duplicit exterior checking and unneded string copiing.
Merge branch 'master' of https://github.com/zinnschlag/openmw into weather
Static for nextWeather()